Repair Tips
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Results: 88076
Results: 88076
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| SONY |
KV-29FS100
|
Does not turn on, the LED flashes 9 times, and returns to standby and repeats the cycle several times. | Resistor r693 330k close to the power supply relays. | Replace r693 in the power supply. | Marcones de Araripina PE. |
| SAMSUNG |
2033SW PLUS
|
Screen turns off seconds after turning on | Weak light bulbs - remove lamp protection | Place a 10k resistor on pin 10 of the ci bd9893f and ground | HAHNRAHN |
| AOC |
D32W831
|
Some o I am ou sound I am | 3.3v regulator u602 1084-33 it outputs about 4v instead of 3.3v | It is close to the rear HDMI and SMD input | orlando lott |
| SEMP TOSHIBA |
DL3244(A)
|
White screen without image with sound | Capacitor shorted on the screen board. watch the video https://youtu.be/wxlzi_djyxs | Eliel Batista | |
| SONY |
HCD-EX6
|
When I plugged the sound into the socket it would turn on and off, only the times I turned it on, neither the CD nor the USB would work. | After analysis I found the diode d400 1n4002-a2 which is on the panel PCI it was open, after replacing the sound it works normally again. | Jonas | |
| SEMP TOSHIBA |
V2 48L2400
|
Backlight turns on and turns off in a few seconds | Deactivation of backlight protection. on the inverter part of the main board, go to ci n701 and place a 100k resistor from pin 10 to r786 (it's just below the ci). By doing this, backlight protection will be deactivated. | EC | |
| PHILCO |
PH32E31DG
|
Don't care, | C2d7 c1d9, c2d6 capac 100yf 50v replace todos | Replace | molina |
| SEMP |
TV 1492
U16 |
Very low or no sound | Changing the cap. electrolytic c613 | Alexandre Batista | |
| BUSTER |
HBTV32B05HD
|
I'm sound | Place a 100 ω resistor connecting to the cathode of diode 15 and the base of transistor 18 | ||
| TOSHIBA |
TV2177(A)SL
|
Image disappearing at the top, with a distortion in the image, opening and closing, with sections disappearing. It didn't even appear to be vertical, because the distortion had no pattern and only parts of the image disappeared. and when it warmed up, it returned to normal. | D301. After spraying cooling spray on parts of the circuit to make the defect manifest itself, the diode ended up permanently damaged and the vertical closed. | When changing the diode, everything was fine. The defect no longer appeared, even though the TV was turned off for a few days. | Romildo Behrend |
| LG |
CM4340
|
Turns on without audio, after some time protection 5 comes on | PC 903 coupler open junction, due to oxidation. | Imagem | |
| SAMSUNG |
HT-Z 210
|
Turns on, then immediately activates the protection. Check at the power supply if tsound are voltages in the connector that goes to the audio card. +12, -12, 29v. | In my case, the 12v voltage was missing from this connector. see possible short in the 6000ufx6.3v capacitor. | Replace o capacitor 6000μFx6.3v | arock |
| PHILCO |
PTV43E60SN
|
Backiligt sometimes lit up sometimes not LED bars changed | Capacitor cb9 removed and placed 100nf works even without capacitor | cmteck eletro | |
| TOSHIBA |
TV2959JFS FS8
LEM10 |
Low sound | Change capacitors c636, 637 without measuring. Both are close to the heat sink and over time, it is normal for them to dry out. | jr_TEC | |
| COLGAR |
CTV2005
|
Changes channels and volume by itself without stopping. | Remote control signal receiver sensor missing or shorted. | JS Eletronica (Nilsinho Rodrigues) | |
| TCL |
32S6500S
|
TV turns on, initializes and turns off, returning to stand by. Note: the LEDs were good | The defect was in the LED controller circuit. voltage too high, arming protection. I changed the calculation of the return control resistors. and the tension dropped and the TV stayed on. OK | JS Eletronica (Nilsinho Rodrigues) | |
| SAMSUNG |
LN26D450
|
This TV turns on, turns off, restarts sometimes shows a normal image then the backlight | The cause was the capacitor c11 15 shorted, killing the voltage of the 1.5v regulator or ic205 | naelson silva gravata pe | |
| SONY |
HCD-EX6
|
Turned off in 3 seconds | Defect in the CD part, when I disconnected the flat cables it stopped turning off | Jonas | |
| SAMSUNG |
UN40F6400AG
|
Burning the LEDs reduces the current | Https://youtu.be/pse_p5w0say | Follow the steps in the video that never burns again https://youtu.be/pse_p5w0say | Eliel Batista |
| PHILIPS |
55PFG7309/78
|
Does not turn on, only standby LED is on | In addition to the entire capacitive chain of the 12v line being inflated, after the change was made the TV still did not turn on, the main one sent the ps-on command but did not arm the full 12v, the voltage remained the same as the standby voltage at around 8.5v , so I followed this line and saw that tsound was no vcc_on voltage (look at the service manual) | After analyzing the ps-on circuit, it was found that the q9332 was open! | Lucas |